Subject: Re: [PATCH v2] arm64: dts: zcu100-revC: Give wifi some time after power-on

From: Tony Lindgren <[email-masked]>
Date: Thu, 24 Jan 2019 07:29:26 -0800

* Jan Kiszka <[email-masked]> [190124 08:29]:
> From: Jan Kiszka <[email-masked]>
> 
> Somewhere along recent changes to power control of the wl1831, power-on
> became very unreliable on the Ultra96, failing like this:
> 
> wl1271_sdio: probe of mmc2:0001:1 failed with error -16
> wl1271_sdio: probe of mmc2:0001:2 failed with error -16
> 
> After playing with some dt parameters and comparing to other users of
> this chip, it turned out we need some power-on delay to make things
> stable again. In contrast to those other users which define 200 ms,
> Ultra96 is already happy with 10 ms.

Good to hear this got sorted out, thanks everybody.

Acked-by: Tony Lindgren <[email-masked]>

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